Hello again, Job
Sorry for the recurring formatting and tab issues.
Here's the updated diff.
Index: extern.h
===================================================================
RCS file: /cvs/src/usr.bin/rsync/extern.h,v
retrieving revision 1.44
diff -u -p -u -p -r1.44 extern.h
--- extern.h 2 Aug 2022 18:09:20 -0000 1.44
+++ extern.h 22 Feb 2023 17:48:04 -0000
@@ -134,6 +134,7 @@ struct opts {
int server; /* --server */
int recursive; /* -r */
int dry_run; /* -n */
+ int prune_empty_dirs; /* -m */
int preserve_times; /* -t */
int preserve_perms; /* -p */
int preserve_links; /* -l */
Index: flist.c
===================================================================
RCS file: /cvs/src/usr.bin/rsync/flist.c,v
retrieving revision 1.37
diff -u -p -u -p -r1.37 flist.c
--- flist.c 26 Dec 2022 19:16:02 -0000 1.37
+++ flist.c 22 Feb 2023 17:48:05 -0000
@@ -802,10 +802,11 @@ static int
flist_gen_dirent(struct sess *sess, char *root, struct flist **fl,
size_t *sz,
size_t *max)
{
- char *cargv[2], *cp;
- int rc = 0, flag;
- FTS *fts;
- FTSENT *ent;
+ char *cargv[2], *prune_cargv[2], *cp;
+ int rc = 0, flag, empty_chain;
+ FTS *fts, *prunefts;
+ FTSENT *ent, *prunent;
+
struct flist *f;
size_t i, flsz = 0, nxdev = 0, stripdir;
dev_t *newxdev, *xdev = NULL;
@@ -905,6 +906,35 @@ flist_gen_dirent(struct sess *sess, char
if (!flist_fts_check(sess, ent)) {
errno = 0;
continue;
+ }
+
+ /*
+ * If -m (prune empty dirs) is enabled, create a new fts
+ * to independently traverse directories at once and determine
+ * whether we are dealing with a hierarchy of empty
+ * directories, if so, skip.
+ */
+
+ if (sess->opts->prune_empty_dirs && ent->fts_info == FTS_D) {
+ prune_cargv[0] = ent->fts_name;
+ prune_cargv[1] = NULL;
+ if ((prunefts = fts_open(prune_cargv,
+
FTS_PHYSICAL, NULL)) == NULL) {
+ ERR("fts_open");
+ return 0;
+ }
+ empty_chain = 1;
+ while ((prunent = fts_read(prunefts)) != NULL) {
+ if (prunent->fts_info != FTS_D &&
+ prunent->fts_info != FTS_DP) {
+ empty_chain = 0;
+ break;
+ }
+ }
+ if (empty_chain)
+ continue;
+
+ fts_close(prunefts);
}
/* We don't allow symlinks without -l. */
Index: main.c
===================================================================
RCS file: /cvs/src/usr.bin/rsync/main.c,v
retrieving revision 1.66
diff -u -p -u -p -r1.66 main.c
--- main.c 14 Feb 2023 17:15:15 -0000 1.66
+++ main.c 22 Feb 2023 17:48:05 -0000
@@ -326,6 +326,7 @@ const struct option lopts[] = {
{ "perms", no_argument, &opts.preserve_perms, 1 },
{ "no-perms", no_argument, &opts.preserve_perms, 0 },
{ "port", required_argument, NULL, OP_PORT },
+ { "prune-empty-dirs", no_argument, &opts.prune_empty_dirs, 1 },
{ "recursive", no_argument, &opts.recursive, 1 },
{ "no-recursive", no_argument, &opts.recursive, 0 },
{ "rsh", required_argument, NULL, 'e' },
@@ -362,7 +363,7 @@ main(int argc, char *argv[])
opts.max_size = opts.min_size = -1;
- while ((c = getopt_long(argc, argv, "Dae:ghlnoprtvxz", lopts, &lidx))
+ while ((c = getopt_long(argc, argv, "Dae:ghlmnoprtvxz", lopts, &lidx))
!= -1) {
switch (c) {
case 'D':
@@ -388,6 +389,9 @@ main(int argc, char *argv[])
case 'l':
opts.preserve_links = 1;
break;
+ case 'm':
+ opts.prune_empty_dirs = 1;
+ break;
case 'n':
opts.dry_run = 1;
break;
@@ -633,7 +637,7 @@ basedir:
exit(rc);
usage:
fprintf(stderr, "usage: %s"
- " [-aDglnoprtvx] [-e program] [--address=sourceaddr]\n"
+ " [-aDglmnoprtvx] [-e program] [--address=sourceaddr]\n"
"\t[--contimeout=seconds] [--compare-dest=dir] [--del]
[--exclude]\n"
"\t[--exclude-from=file] [--include] [--include-from=file]\n"
"\t[--no-motd] [--numeric-ids] [--port=portnumber]\n"
Index: rsync.1
===================================================================
RCS file: /cvs/src/usr.bin/rsync/rsync.1,v
retrieving revision 1.30
diff -u -p -u -p -r1.30 rsync.1
--- rsync.1 2 Aug 2022 18:09:20 -0000 1.30
+++ rsync.1 22 Feb 2023 17:48:05 -0000
@@ -150,6 +150,8 @@ bytes.
See
.Fl -max-size
on the definition of size.
+.It Fl m , -prune-empty-dirs
+Prune empty directory chains from the file list.
.It Fl n , -dry-run
Do not actually modify the destination.
Mainly useful in combination with
